Ore-washer



(NOM-00h31.)

S. U. MGLANAHAN 8v W. F. KIRK.

ORE WASHER.

No. 445,430. Patented Jan. 27, 1891.

ATTORNEYS no.. wumamu, n. c.

UNITED STATES PATENT OFFICE.

SAM EI. C.

MCLANAHAN AND WILLIAM F. KIRK, OF HOLLIDAYSBURG,

PENNSYLVANIA.

ORE-WASH ER.

SPECIFICATION forming part of Letters Patent No. 445,430, dated January 27, 1891.

Application filed November 5, 1890. Serial No. 370,424. (No model.)

.T0 all whom t may concern.:

Be it known that we, SAMUEL (l. MCLANA- HAN and IVILLIAM F. KIRK, of Hollidaysburg,l in the county of Blair and State of Pennsylvania, have invented a new and useful Improvement in Oi'e-lN/Iashers, of which the following is a specification.

Our invention relates to oreavashers of that -form in which one or more shafts provided with radial blades revolve in a box or tank, the ore being agitated and carried forward to the discharge end by said blades. It is very important in washers of this class that the height of the Waterin the Washer-box be over the tops of the shafts at the end at which the material is fed into the Washer, so that the earth and clay may the sooner be saturated With the Water and the ore Washed with greater speed and facility.

Our invention consists in the peculiar construction and arrangement of the journals, journal-bearings, and end plates of the Washer-box, whereby the renewal of the bearingsurface when worn may be more easily effected; and it also consists in the special construction of a flanged journal or gudgeon, a sleeve for the end of the shaft, and stirringblades attached to the said sleeve, as hereinafter fully described.

Figure 1 is a side view of a stirrer-shaft mounted in bearings in the Washer-box, which is shown in longitudinal section. Fig.2 is an enlarged sectional View of the journal, the journal-bearing, and end plate. Fig. 3 is a cross-section through the line :o of Fig. 1, and Fig. 4 is a cross-section through line y y of Fig. 2.

A is the Washenbox, in which the ore is fed to be Washed. rlhis box is deeper at one end than it is at the other,so as to permit one end of the revolving shaft B to be immersed in the Water. This shaft is journaled in bearings in the Washer-box in an inclined position to the horizontal, and is armed with a series of radial stirrer-blades B', set spirally, so as to agitate the ore in the Water to thoroughly wash it and also feed it toward the discharge end of the box. The shaftB is in the nature of a heavy log of octagonal cross-section, the ends of which are received and firmly socketed in corresponding octagonal sleeves C. These sleeves and the shaft need not be octagonal, but may he of any other shape in cross-section. The sleeves C are made of cast metal with a ange a, to which is bolted at the lower end of the shaft the flange d of a gudgeon I). The journal and hearing at the lower end of the shaft, being immersed beneath the Water and being liable to rapid Wear on account of the grit, is made in the following Way: The gudgeon D is of octagonal cross-section, and has slipped over ita removable jacket or thimble E,the outer periphery of Which is circular and somewhat tapering and which forms the journal of the shaft, turning rigidly With the gudgeon. Thelatter need notbe of octagonal shape, but may be square, polygonal, or any other shape that causes the thimble E to turn with it.

F is the journal-box, which receives the journal E, both of which are made of steel or chilled castings. This journal-box is held in a bracket-frame G, bolted to the end plate H of the Washer-box, and said journal-box is provided with a pipe b,lead1nginto the bearingsurfaces, through which a stream of pure clean Water is kept running to continually Wash out from the bearing-surfaces any grit that may have a tendency to work into the same.

In the end plate Il of the Washer-box is formed an opening with flange e, which opening is larger than the journal-box F, so that the latter may be taken through said opening` When it is to be removed. The openingin this end plate is closed by a cap-plate I, which is bolted to the ange e and is provided with a ange or cup-like projection c, which extends to and bears against the journal-box F, forming a back-stop or abutment for the same. Now, when the journal-bearing becomes Worn from the gritty water and heavy service, it is not necessary to lift out the end of the heavy shaft B, but the latter is blocked up to hold it in place, and, the cap I being removed, the

journal-box F and journal casing or thimble deposited at the deeper end ofthe box when the shaft is immersed, and at this point the hardest Work is to be performed by the stirrer-blades B. Instead, therefore, of attaching the first set of blades to the shaft B itself, We bolt them to the metal sleeve C. This not only gives thema much firmer connection,but it enables us to start the stirring much closer to the end of the Washer-box, thereby preventing so much dead material from packing or lying undisturbed against the receiving end of the washer. The same arrangement at the other end of the shaft accelerates the discharge of the Washed. ore and prevents the choking of the discharge-outlet, which has given much trouble heretofore.

Having thus described our invention7 what we claim as neu7 is l. The combination, with the revolving stirrer-shaft in an ore-Washer, of an end plate having an opening through it opposite the journal of said shaft,a journal-box of smaller size than said opening, a support for the jonrnal-box of said shaft, and an. end cap for closing said opening, substantially as shown and described.

2. The combination of the stirrer-shaft hav- 4. The combination of the inclined Waterbox and the inclined stirrer-shaft of an ore- Washer, a sleeve C, having the end of the shaft socketed therein and provided with a ange aga gudgeon or journal having Iiange d, bolted to the flange of the sleeve, and a stirrer blade or blades bolted to said sleeve, substantially as shown and described.

SAML. C. MCLANAHAN.

IVM. F. KIRK.

'Witnesses:

J D. WEYANDT, F. J. OVER. 

